"When (Jamie) is really involved in an activity like that, you can just see the concentration on her face and her enjoyment," Goodrich said. "That's part of the art contest, showing all of the enrichment that the sanctuaries do to help enhance the lives of the chimps we care for."

Another artist in the contest is Patti, a retired amusement park performer who lives at the Chimps, Inc. sanctuary in Bend, Oregon. Her colorful finger painting vaguely resembles seagulls in flight.

Online voting will determine the prize winners. Voting ends on Thursday, with the winners to be announced next week. In order to vote, you have to give your email address to the Humane Society of the United States.